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NSGP Board of Directors, Executive Committee


Guy R. Croteau, LICSW, CGP

After 20 years working in Information Technology, Guy Croteau, LICSW, CGP became a therapist after graduating Boston University in 2001. He's been in Private Practice since 2014 and previously worked at Fenway Health for 8 years where he led a number of gay men's groups and other groups for those with chronic mental health issues. Guy joined NSGP in 2011 following the completion of the Principles Course. He then served on the Executive Board as Treasurer for 2 consecutive terms (2016-2020). He believes that NSGP has a dynamic and integral role to play in the professional lives of those who facilitate groups in any setting. He also strongly advocates for NSGP's growth in areas of diversity, inclusion and equity and looks forward to helping lead NSGP to become a more welcoming organization to all who want to participate.

Past President

Jenn DeSouza, MSW, LICSW, CGP

Jennifer DeSouza, MSW, LICSW, CGP received her Masters in Social Work from Boston College in 1999. Jennifer received her CGP in 2013 after completing the NSGP training program and she is currently participating in the Modern Psychoanalytic weekend training program at the Center for Group Studies in New York City. As an experienced social worker Jennifer has practiced in community mental health settings providing evaluation and treatment to individuals, families and groups. Jennifer currently manages the Group Therapy Program at Massachusetts General Hospital where she also provides individual therapy and consultations referral and resource information to patients and families. 


Dr. William Sharp, PsyaD, LMHC

William Sharp, PsyaD, LMHC, CGP is a psychoanalyst who received his doctorate from the Boston Graduate School of Psychoanalysis in 2010.  He trained in Modern Psychoanalysis at BGSP and in the weekend training program at the Center for Group Studies in New York City. William is an associate teaching professor in the department of psychology at Northeastern University and the director of the Master's in Mental Health Counseling at BGSP.  He maintains a private practice in Brookline Village working with children, families and couples as well as individuals and groups.


Natasha Khoury, M.Ed., M.A., LMHC

Natasha Khoury, M.Ed., M.A., LMHC is a Licensed Clinical Mental Health Counselor who has a Private Practice in Cambridge, MA. She graduated with a dual Masters in Elementary Education and Moderate Disabilities and a Masters in Counseling Psychology and Trauma Studies from Lesley University. Natasha has extensive experience working with various populations beginning with her work at McLean’s substance use inpatient unit followed by years of crisis work, having had one of her most rewarding clinical experiences at Boston Area Rape Crisis Center (BARCC), where she worked with survivors of sexual trauma. Her interest in crisis work grew while employed with North Suffolk Mental Health Association where she worked in emergency services as part of the Boston Emergency Services Team. Throughout the years, Natasha has expanded her skills as an In-Home Therapist at Arbour Counseling Services, an outpatient therapist at DCS Mental Health Inc., a DBT specialized therapist at a group practice, Inspired DBT, and most recently, in her own practice. Natasha has volunteered at The Women’s Center in Cambridge, BARCC’s helpline, Armenian American Mental Health Association and is actively involved with PCFINE’s Program Committee and NSGP’s online newsletter, NSGPeople. She is curious and passionate about cultural backgrounds and experiences, trauma work and is specialized in anxiety, depression and PTSD. In joining NSGP's Executive Committee as Secretary, Natasha hopes to advance the mission of our organization by increasing recognition for diversity, equality, inclusion and social justice, collaborating with and supporting fellow members of the board and helping build a strong sense of belonging and community for all members.

NSGP Board of Directors

Cindy Berman-Richter, LICSW

Madeline Freeman, LICSW

Maddie Freeman, LICSW received her MSW from Smith College School for Social Work in 2018 and began her social work career working with older adults with medical complexities. Maddie is now full-time at a group practice in Harvard Square, doing Individual, Couples, and Group work. She is receiving Couples training at PCFINE in their fellowship program. Having grown up in a Co-Housing neighborhood, Maddie adores all things "group," and is getting her first groups off the ground in her practice. She is grateful to be able to lean on NSGP mentors the whole way. With NSGP, Maddie has been Co-Chair of the Newsletter Committee since 2019, and helped launch the first online version of the newsletter, "NSGPeople." Outside of the group therapy world, Maddie enjoys frequenting cafes, performing music, and the chocolate-peanut butter combination.

Vanessa Gamble, PsyD, CGP

Anaïs Lugo-Guercio, OT

Anaïs Lugo-Guercio, OT, received her master’s in occupational therapy from Tufts University. She has experience working in schools, with children from kindergarten to high school, and leading psycho-educational groups in the in-patient mental health setting. Anaïs is a Diversity, Equity, and Inclusion group leader, leading groups focused on identity, healing, and social justice. She is a member of NSGP’s Diversity, Equity, and Inclusion Committee. Her areas of interest include inclusive virtual communities.

NSGP Past Presidents

1956-58 Herbert Barry, MD, Founder

1958-60 Lynn S. Beals, MD

1960-64 Stanley Kanter, MD

1964-66 Max Day, MD

1966-68 Norman A. Neiberg, Ph.D., FAGPA

1968-70 Jacob Christ, MD

1970-72 Henry Grunebaum, MD, FAGPA

1972-74 Donald Wexler, MD, FAGPA

1974-76 Franklin Carter, MD

1976-78 Lawrence Bader, Ph.D., FAGPA

1978-80 J. Scott Rutan, Ph.D., DFAGPA

1980-82 Anne Alonso, Ph.D., FAGPA

1982-84 Cecil A. Rice, Ph.D., CGP, FAGPA

1984-86 Allan Lurvey, Th.D.

1986-88 Sharon S. Cheeseman, LICSW, CGP, FAGPA

1988-90 Suzanne L. Cohen, Ed.D., CGP, FAGPA

1990-92 Samuel R. James, Ed.D., ABPP, FAGPA

1992-94 Walker E. Shields, MD, CGP, FAGPA

1994-96 Steven Haut, LICSW, BCD

1996-98 Kathleen Hubbs Ulman, Ph.D., CGP, FAGPA

1998-00 Arnold Cohen, Ph.D.

2000-02 Richard C. Tomb, MD

2002-04 Joyce D. Shields, APRN, BC, CGP

2004-06 Lise Motherwell, Psy.D., CGP

2006-08 Barbara Keezell, LICSW, BCD, CGP

2008-10 Eleanor Counselman, Ed.D., CGP, FAGPA

2010-12 Sara Emerson, LICSW, CGP, FAGPA

2012-14 Peter Gumpert, Ph.D.

2014-16 Debora Carmichael, Ph.D., CGP, FAGPA

2016-18 Steffen Fuller, Ph.D., CGP

2018-20 Ann Koplow, LICSW, CGP

2020-22 Jennifer DeSouza, MSW, LICSW, CGP

2022-     Guy R. Croteau, LICSW, CGP  

Northeastern Society for Group Psychotherapy
P.O.Box 356 | Belmont, MA 02478

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